500 MCM 4C w/ 250 MCM Ground Twisted XHHW-2 Aluminum Feeder Cable, Priority-Plex®, (Brown, Orange, Yellow, Gray, Green)

This 500 MCM 4-conductor Priority-Plex® assembly with an integrated 250 MCM Ground is a high-capacity power distribution solution specifically color-coded for 277/480V 3-phase, 4-wire systems. By factory-twisting the phase conductors (Brown, Orange, Yellow), the neutral (Gray), and a 250 MCM Green ground, this cable creates a single, synchronized "ready-to-pull" circuit.

Why Choose Priority-Plex® 500 MCM with 250 MCM Ground?

At the 500 MCM gauge, managing individual conductors is a major logistical hurdle. Priority-Plex® technology eliminates "spiraling" and "bird-caging" during the pull. The 250 MCM ground is sized to provide a high-capacity, low-impedance path for ground faults, ensuring the safety of the entire high-amperage feeder system while maintaining a more manageable bundle diameter than a full-sized ground.

• Single-Reel Efficiency: Replaces five separate reels and jack stands with one. This reduces the staging footprint in tight electrical rooms and allows for much faster setup.

• 480V Phase Identification: Factory-colored insulation (Brown, Orange, Yellow, Gray, Green) provides permanent phase and ground identification. This removes the labor of field-taping and minimizes the risk of catastrophic 480V/208V cross-wiring errors.

• Superior XHHW-2 Insulation: The XLPE (Cross-linked Polyethylene) jacket is tougher than standard PVC, offering high resistance to the physical stresses of industrial pulls and a 90°C rating in both wet and dry locations.

• Reduced Friction Geometry: The factory-twisted configuration keeps the ground wire tucked within the bundle, reducing the surface area contact with the conduit wall and lowering total pulling tension.

Technical Specifications: 500 MCM 4C + 250G

• Phase/Neutral Size: 500 MCM (kcmil)

• Ground Size: 250 MCM (kcmil)

• Number of Conductors: 5 (Brown, Orange, Yellow, Gray, Green Ground)

• Conductor Material: AA-8000 Series Aluminum Alloy

• Insulation Type: XHHW-2 (Cross-linked Polyethylene)

• Voltage Rating: 600V

• Temperature Rating: 90°C (Wet/Dry)

• Ampacity: 350 Amps (@ 90°C) | 310 Amps (@ 75°C)

• Configuration: Parallel-Twisted (Priority-Plex®)

Common Applications

• Industrial Main Feeders: Supplying power from primary switchgear to large motor control centers (MCCs) and distribution panels.

• Commercial 480V Services: Ideal for high-rise utility risers and primary service entrances for hospitals, malls, and data centers.

• Large-Scale HVAC Systems: Powering industrial chillers and heavy mechanical equipment that require high-voltage, high-amperage feeds.

• Institutional Infrastructure: Primary feeders for universities and government complexes where 480V 3-phase power is the standard for distribution.

Technical Note: When terminating 500 MCM aluminum, ensure you use AL9CU-rated mechanical or compression connectors. It is vital to wire-brush the conductor and apply an approved antioxidant joint compound to ensure long-term connection integrity. Always verify that your conduit sizing accommodates the 5-conductor twisted bundle per NEC Chapter 9.

CABLE CONFIGURATION: 4C + 1G (BRN-ORG-YEL-GRY-GRN) Twisted Bundle

PRIORITY PART#: 500-04PPLEX-BOYG-250G

General Shipping Information

In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.

You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.

Expedited Shipping

Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).

Returns

You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.

Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.

Orders on any items with a material value of $50 or less are non-returnable.